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How we make Voltage limiting

  1. Mar 2, 2006 #1
    how you doin?? I work to make voltage Limiting. but I need some idea to make sample device. I f anyone can help plaese do it. I need diagram about his\her idea.

    thanks alot
    I appreciate it :wink:
  2. jcsd
  3. Mar 2, 2006 #2


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    Staff: Mentor

    We would need more details to be of help. If you mean a voltage clamp, then the simplest is just a diode. Say you want to clamp some voltage supply to 5.6V, then you just connect the cathode of the diode to your voltage source, and the anode to a stiff 5V supply. Of course, you have to think about currents, powers, etc. when you pick the diode for this.

    What is the context of your question?
  4. Mar 2, 2006 #3
    Sorry, I mean Volage regulator. How we can make simple design.
  5. Mar 2, 2006 #4


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    Science Advisor

    Are you limited so you can't use a LM78xx or LM79xx linear regulator? Something like a LM7805 is about as simple as it gets and more elegant than a zener diode as a clamp.
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